Attaching handles to sheet-metal vessels



UNITED STAT S PATENT OFFICE.

eEoRe w. KNVAPP, oE BALTIMORE, MARYLAND.

ATTACHING HANDLES 'l'O SHEET-METAL VESSELS.

SPECIFICATION forming part of Letters Patent No. 271,871, dated February 6, 1883.

Application filed January 6, 1883. (No model.)

To all whom it may concern Be it known that I, GEORGE W. KNAPP, a citizen of theUnited States, residing at Baltimore, and State of Maryland, have invented certain new and useful Improvements in Attaching Handles to Sheet-Metal Vessels, of which the following is a specification, reference being had therein to the accompanying drawin gs. I

This invention relates to an improvement in attaching handles to sheet-metal \'essels such as tin cups, stew-pans, and the likeand will first be described, and then designated in the claim.

In the drawings hereto annexed, Figure l is a view of the body of, the vessel prepared for the attachment of the bottom and handle. Fig. 2 is a view of the bottom as it is previous to attachment. Figs. 3 and 4 are views of the handle. Fig. 5 is a side sectional view of theseveral parts of a tin cup in position together ready to be attached. Fig. 6 shows the finished cup. r

The walls A of the body of the cup are cylindric. The lower edge is at first turned outward, thereby forming substantially a rightangled flange, b. I The circular-bottom O'is stamped up to form a vertical or nearly vertical circular part, d, which isto fit within the lower end of the cylinder. The rim 0 of the bottom at this stage projects radially or straight outward from'the nearly vertical part. The central portion of the bottom may and preferably should be stiffened by stamping therein a depression, something like the annular depression f. The handle G maybe out out by any suitable means, and the edges h folded or doubled over, as usual. The lower end ofthe handle has one or more tan gs, t, projecting therefrom. The tang is first bent so as to project at an angle with respect to the handle, substantially as shown in Figs. 4 and 5.

[The cylinder, bottom, and handle are then put in position, as shown in Fig. 5, to be secured together. It will be seen that the rim of the bottom projects beyond the flange b of the cylinder. The parts, when in this position, are placed between the chucks of a lathe, and the grooved roller of a spinning-tool (not shown) is brought to bear against the straight projeoting rim 6 of the bottom while all the parts are turned in the lathe. By this methodthe rim is spun over and incloses the flange of the cylinder and the tang of the handle at the same time, the tang being curled or bent up within the coiled seam 0. Thus the lower end of the handle is made fast without a special operation and without the use of solder. If preferred, however, solder may he applied. The upper end of the handle may now be attached by pressing it against the cylinder and applying solder at q across the top.

The coiled seam which incloses the lower end of the handle may be left round, as shown, or may be flattened against the body to form a double seam. In some cases the lower end ofthe handle may be bent and inclosed within the turned over seam without preparing the end by forming a special tang on it.

Having described my invention, ll claim and desire to secure by Letters Patent ofthe United States- A sheet-metal vessel composed of a body, a

separate bottom, and a handle the lower end of which is bent at an angle and projects away from the body, and has the bent part inclosed within the coiled or double sea-m of the bottom, as set forth.

In testimony whereof I aflix my signature in presence of two witnesses.

GEORGE W. lKNAPP. Witnesses:

J. EDWARD MORRIS, JNo. T. MADDOX. 

